Embossing-press.



J. E. BLAKE.

EMBOSSING PRESS.

APPLICATION FILED MAY 14, l9l3. RENEWED JUNE 25.1913.

' Patented NOV. 26, 1918..

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EMBOSSING PRESS.

APPLICATION FILED MAY I4. 1913. RENEWED JUNE 25.19l8. 1,285,60Q Patented Nov. 26,1918;

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by QWW M @JMQ mfiafmhmt J. E. BLAKE.

EMBOSSING PRESS.

APPLICATION FILED MAY I4. 1913. RENEWED JUNE 25.1913.

L285,60U. Patented Nov. 26, 1918.

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which the following is a specification.

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JESSE ERVILLE BLAKE, OF GHAM'PLAIN, NEW'YOEK, ASSIGNOR OF ONE-HALF TO THE SHERIDAN IRON WORKS, A CORPORATION OF NEW YORK, AND ONE-HALF TO '1. W. & C. B. SHERIDAN COMPANY, A CORPORATION OF NEW YORK.

EMBOSSING-PBESS.

mean

Patented Nov.26, 1918.

Application filed May 14, 1913, Serial No. 767,559. Renewed June 25, 1918. Serial No. 241,871

To all whom it may concern:

Be it known that a citizen of the United States, of Champlain, Clinton county, State of New York,have' invented certain new and useful Improvements in Embossing Presses, of

The invention relates to presses; and, while it may be embodied in construct1ons various purposes, 1t is more particularly applicable to presses for embossmg materials, such as leather and the like Objects of the invention are to provide a press in which the pressure on the material to be treated may be regulated; which shall be simple in construction, econom cal, speedy, and reliable and highly eflicient 1n operation. These and other ob ects, of the invention will in part be obvious and in part be more fully set forth in the following description.

The invention consists in the improvements, construction herein shown and described.

In the accompanying drawings, which are referred to herein and form part hereof, is illustrated an embodiment of the invention, the same serving in connection with the description herein to explain the principles of the invention.

Of the drawings:

Figure 1 is a perspective view 0" an embossing press constructed in accordance with the invention;

Fig. 2 is an end View of the same, parts being broken away;

Fig. 3 is a front view of a detail; and

Fig. 4 is an end view of the same, parts being broken away.

A press constructed in accordance with one feature ofthe invention comprises in combination, a pair of cooperating platens, means for operating said platens, and hydraulic cushioning means for one of said platens. In one embodiment of this feature of the invention said cushioning means comnovel parts,

prises a fluid-circulating system arranged in cotiperative relation with the impression platen. 7

According to other features of the invention, means are provided for regulating the degree of resistance offered by said cushioning means, and a dial is provided for indi- I, J ESSE ERVI'LLE BI .AKE and a resident combinations, and features of eating the pressure on the material being treated.

0 According to yet another feature of the invention, means are provided in combination with the cushioning means for adjust- 111g the platens to varying thicknesses of material to be treated.

Referring now in detail to the drawings, the invention is illustrated as embodied in an embossing press which, preferably, comprises a base 3 and a pressing platen 4 which, as shown, is vertically movable between tension rods 6, being operated by suitable mechanism, as illustrated. An impresslon platen, preferably adapted to be heated for use with leather and similar materials and for this purpose and as shown consisting of the steam head 8, suitably bolted to a heavy backing plate 9, is arranged above the presslng platen 4, being adjustably secured y means of four rods 11, one preferably at each corner of the plate 9, and adjustable nuts 12 to a stationary head 13 rigidly secured to the tension rods. 6.

feature of the invention consists in providing' cushioning means for said platens. Preferably, a fluid-circulating system is used as a hydraulic cushion, and in the preferred embodiment of the invention illustrated in the drawings two rams 15 and 16, suitably spaced apart, are securely fastened to the plate 9 and are arranged to operate in housings, as shown of steel, formed in the stationary head 13. A receptacle 16 for a suitable fluid, as oil, is arranged near the top of the stationary head 13, and a pipe 17 communicates between this receptacle and the housings for the rams, establishing a circulation for the fluid. The rams are packed in a usual manner.

Suitable means are provided for regulating the resistance offered by the cushioning means. As shown, the receptacle having been supplied with oil, the same passes through a check valve 19 into the piping and thence into the housings for the rams 15 and 16. When the impression platen- 8 is lifted by the upwardly moving pressing platen 4, it compresses the oil in the flllld-ClIClllating system and automatically closes the check valve 19. A safety valve 21 is provided at a suitable place in the piping, which valve may be set for any desired pressure,

from which it is returned to the ram'housings, as required. As shown, the pressure is indicated on a dial 22f The operation of the fluid-circulating system may be further particularized as follows: The rams 15 and 16 with the impression platen or combined heating and dieholding plate are allowed to drop a slight distance. In thus'dropping the oil is turned into the spaces in the housings thus vacated. The return of the rising'bed forces the rams back into the housings-until the rams are held by the liquid. Then takes place the embossing of the material. When the pressure reaches the degree for which the safety valve has been set, the safety valve permits the liquid to pass therethrough to the supply receptacle 16', thus preventing excessive pressure. Or the pipe 17 could merely be connected to any steady liquid pressure sourceor head, such as a city water main, so that without the use of the valves a resistance would be opposed to the pressure on the dies, but'only up, to a predetermined amount of pressure.

In order that the press maybe further accommodated to varying thicknesses of leather, means are provided for adjusting the platens with relation to each other. Preferably and as shown, the pressing platen 4 is provided with an adjustable wedge 25 operated under the top of the platen by means of screw 26 and gears 27,28 which are actuated by the wheel 29. The operation of the wedge will be obvious.

It will be noted that with a press con-' structed in accordancewith the invention perfect regulation of the pressure on the material may be secured, the exact pressure being atall times known to the operator, and all the advantages-of the hydraulic form of press are secured without its defects and dangers. Besides speed andefliciency, other advantages of the invention will also be seen.

The invention in its broader aspects is not limited to the precise construction shown and described nor to anyparticular construction by which the same has been or may be carried into effect, as many changes may be die adapted to descend by gravity, a work" support arranged to be driven against said die in an upward direction, a fluid resistance to a certain pressure exerted byv opposed to the ascending die and support,

and means for gaging said resistance according to a predetermined pressure.

3. A press including, in combination, a I

vertically movable work carrier, a gravity die suspended above said carrier in position to be raised thereby, and a fluid pressure device operating to ofier a resistance to the raising of the die relatively to its means of suspension. k

' 4. A press including, in combination, a

die adapted to be positioned by gravitation,

a ram operable thereby, a fluid offering resistance to the movement of said ram, and a work carrier arranged to be driven against said die.

5. A press inc-ludin in combination, a vertically movable wor support, a die suspended thereabove, a ram displaceable by gravity in conjunction with said die, and a body of fluid adapted to' occupy the space vacated by said ram in position to be repelled thereby. 4

6. A press including, in combination, a loosely suspended'die, a body of fluid adapted for superimposition thereupon in quantit1es commensurate with varying pressures, a reclprocable work carrier arranged to be driven against the die in-opposition to said vfluid, and means capable of limiting the range of movement of either said die or said carrler, or both of them, relatively to each other.

7 An embossing press including in combination, a stationary head, an opening therein, a ram arranged to operate in said openlng, a looselyv suspended impression platen carrying said ram, a fluid receptacle, means formmg a communicating passage between said receptacle and the opening in said head, whereby fluid may be admitted to the opening toresist pressure imparted by the work brought against said platen, a carrler forcing the work toward the latter, and a safetv valve for diverting the flow of said liquid to the receptacle at a predetermined degree of pressure.

8. An embossing press including in combination, a stationary head formed with an opening, a ram slidable therein, an impresslon platen connected to said ram so as to whereby fluid may be admitted to said open-' ing to resist pressure of thework impelled against said platen, a carrier bringing the Work to the latter, a check valve for preventing flow of the'liquid through said passage, and a safetv valve for diverting the flow of said liquidto the receptacle at a set degree of pressure.

- 9. An embossing press including in combination, a vertically movable ram, a housing therefor, an impression platen depending descend by gravity therewith, a fluid recepwith by gravity in to the receptacle, and a from said ram and adapted to descend thereposition to be pressed the work carried thereagainst, a work carrier, means for moving the latter to said platen, and a fluid-circulating system for resisting the movement of the platen and ram as the work bears thereon, said system comprising an externally mounted receptacle for the fluid, piping establishing a communication between said receptacle and said housing, a check valve in said piping for preventing the backflow of the fluid safety valve per: mitting the passage of the fluid therethrough to the receptacle at a predetermined degree of pressure upon the ram.

10. An embossing press including. in combination, a base, a stationary head connected to said base by tension rods, an impression platen vertically movable between said rods and connected to a pair of rams arranged to reciprocate in cylinders formed in said stationary head, a pressing platen vertically movable between said rods, means for operating said pressing platen, and a fluid-circulating system for resisting the pressure applied to said impression platen, said system comprising a receptacle for the liquid, piping communicating between said receptacle and said ram cylinders, a check valve in said piping to prevent back flow of the liquid to the receptacle, piping communicating between the cylinders and the receptacle, and a safety valve in said piping last mentioned and normally closed but adjustable to permit flow of the liquid therethrough to the receptacle at a predetermined degree of pressure, and means for indicating the pressure.

11. An embossing press including in combination, a housing with a cylinder, a ram slidable therein, an impression platen loosely suspendedwith said ram' and capable of yielding therewith to pressure imparted to the work, a carrier operating to press the work against said platen, and a fluid-cireulating system for resisting the movement of the ram, said system comprising a re back by thereof, an impression platen loosely suspended from said head, a reciprocable work carrier confined within said frame in position to be driven against said platen, a body of fluid compressible by the .latter, and means for circulating said fluid. 1

13. A press including, in combination, a framework having a stationary head, a ram housed.in the latter, a loosely suspended die carrying said ram, a vertically movable work support arranged to be driven against said die, a body of fluid following the dis placement of the ram within its housing, and means affording ingress and egress to said fluid in accordance with set pressures to be exerted upon the die by the work support. 7

14. A press including, in combination, a frame provided with a housing, a fluid receptacle mounted thereon, piping arranged to circulate the fluid to and from said housing and said receptacle in proportion to a predetermined pressure, a ram in the housing adapted to expel the circulating fluid, a loosely suspended impression platen carrying said ram, and a work carrier movable against said platen.

15. A press including, in combination, a frame having a fixed head, a housing formed thereinfa ram slidably fitted in said housing, an impression platen loosely suspended from said head and carrying said ram, a receptacle arranged to'discharge a fluid in the housing coincidently with the displace- .ment of the ram upon retrogression of said platen, a work carrier adapted to be driven against the latter. and means for gaging the flow of said liquid so as to govern the re sistance to be encountered by said carrier.

16. An embossing press including, in combination, upper and lower opposed press members, the lower press member having'opcrating means for forcing it upwardly to squeeze the work and die between the two press members, the upper press member adapted normally to freely descend to initial position and having control means for first holding it down and after a predetermined ceptacle for the fluid, piping communicating \pressure, releasing it to recede. upwardly as between the receptacle and the ram cylinder, a check valve in said piping for preventing the backflow of the fluid to the receptacle, a safety valve permitting the passage of the fluid therethrough to the receptacle at a predetermined degree of pressure upon the ram,

12. A press including, in combination, a frame, a stationary head at the upper end and means for indicating said pressure.

the lower press memberascends.

' In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JESSE ERVILLE BLAKE.

Witnesses:

T. C. LAFONTAINE, JAs. DE E. BURROUGHS. 

